3. Controller checks
3.1 BEFORE connecting the controller power supply
3.1.1 Disable the breakers
Disconnect or disable the breakers BEFORE connecting the controller power supply.
Do not enable the breakers until AFTER the wiring and controller operation are thoroughly tested.
DANGER!
Unintended breaker closing can cause deadly and/or dangerous situations.
3.1.2 Disable the engine start
Disconnect or disable or block the engine start (the crank, and, if present, the run coil) BEFORE connecting the controller
power supply.
Do not enable the engine start until AFTER the wiring and controller operation are thoroughly tested.
DANGER!
Unintended engine starts can cause deadly and/or dangerous situations.
3.1.3 Activate switchboard control
Activate switchboard control before connecting the controller power supply. This prevents unwanted controller actions before
the system is ready.
CAUTION
A combination of wiring and/or configuration errors can create a dangerous situation even under switchboard
control. Therefore, the breakers and engine start MUST also be disabled.
Activating and deactivating switchboard control
DEIF recommends that you put the controller under switchboard control at several points during commissioning. These are
called Activate switchboard control and Deactivate switchboard control respectively.
3.2 Checking each controller
3.2.1 Connecting the controller power supply
If the breakers and engine start are disabled, and switchboard control is activated, then you can connect the controller power
supply.
3.2.2 Checking the controller LEDs
When the controller is powered on, check that the controller the LEDs are as expected:
PPU 300 Commissioning guidelines 4189341106 UK
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